In this Post we have discussed ENSO Phenomenon.
(1) Normally, when the tropical eastern south pacific ocean experiences high pressure, the
tropical eastern Indian ocean experiences low pressure.
(ii) But in certain years, there is a reversal in the pressure conditions and the eastern
pacific has low pressure in comparison to the Indian Ocean.
(ii) This periodic change in pressure conditions is known as Southern Oscillation or SO.
(iv) The difference in pressure over Tahiti, in the Pacific ocean and Darwin in northern
Australia is computed to predict the intensity of the monsoon.
(v) A feature connected with the SO is the El Nino, a warm ocean current that flows pasi
the Peruvian coast, in place of the cold Peruvian current every 2 to 5 years.
(vi) The change in pressure conditions are connected to the El Nino. Hence, the
phenomena is referred to as ENSO (El Nino Southern Oscillations).
ENSO stands for El Niño-Southern Oscillation. It is climate phenomena occuring in the central and eastern tropical Pacific Ocean.